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Jonathan Riemann Feilberg

Jonathan Riemann Feilberg

Micro PE leader, venture builder, and business transformation strategist

jfeilberg
New York, NY
Joined January 2026
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Summary

Jonathan is a leader in Micro Private Equity and venture rollups at Bifrost Studios, specializing in acquiring and transforming businesses valued under $5-10M. He leverages venture studio playbooks to create value through strategic sales, margin optimization, cash flow management, multiple expansion, and financial leverage, particularly capitalizing on the wealth transfer opportunity presented by retiring Baby Boomers. linkedin+3
He is a proponent of the 'Service-as-Software' model, believing that AI can significantly transform service-based industries by absorbing work and shifting annual service spend to AI-first operators. He actively engineers this playbook at Bifrost Studios to re-rate low-multiple service cash flows into high-multiple software cash flows. linkedin
Jonathan has a keen interest in fintech, particularly in analyzing and mapping mispricing in risk and leverage. His work explores the relationship between these factors, seeking asymmetric opportunities within the financial landscape. linkedin
With an extensive background in strategy and operations, including over 8 years at Airtame where he contributed to building a company with a strong product and growing revenues, Jonathan brings a hands-on approach to company building and scaling. linkedin

Work

Education

Writing

My Second Blog Post

March 16, 2024

A blog post shared on the Riemann Group website, offering insights into technology and web development.

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Mispricing in risk and leverage: A fintech perspective

An essay exploring asymmetric opportunities and mapping the mispricing in risk and leverage, particularly from a fintech perspective, and the relationship between the two.

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How rollups rewrite the VC risk-return curve

An analysis of how venture rollups can provide a higher floor on investment outcomes, a faster path to scale, and portfolio smoothing by blending private equity discipline with venture capital growth.

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The Biggest Wealth Transfer in History (And how we are capitalizing on it)

A discussion on how the demographic shift of Baby Boomer retirements is creating significant opportunities for Micro Private Equity, focusing on acquiring and transforming smaller, often outdated, businesses.

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On the phone with...Bifrost Studios

A post detailing Bifrost Studios' venture building model, which focuses on minting new startups at scale, utilizing AI and operational leverage, and a micro-PE arm that buys, upgrades, and compounds businesses.

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Micro PE + Venture Rollups = A Built-In Disruption Hedge

Discusses how micro private equity and venture rollups can act as a hedge against disruption, particularly in times of SaaS valuation slowdowns, by focusing on cash-flow positive, automation-resistant service businesses.

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Notes

JNJack Nicollsaid
JRJonathan Riemann Feilberg
is one of the most insightful asset managers they've worked with in finance.

Jul 28, 2025